Plasma random glucose levels at hospital admission predicting worse outcomes in STEMI patients undergoing PCI: A case series

•Poor glycemic control or stress hyperglycemia on admission is considered to have a negative impact on acute cardiac events.•Both the incidence of all-cause deaths and cumulative rates of major adverse cardiovascular events were significantly higher in patients with higher tertiles of random blood glucose levels.•Plasma random glucose was predictive of a worse prognosis for STEMI patients undergoing PCI in our study.